2117652756 has 12 divisors (see below), whose sum is σ = 4941189792. Its totient is φ = 705884248.

The previous prime is 2117652743. The next prime is 2117652791. The reversal of 2117652756 is 6572567112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88235520 + ... + 88235543.

It is an arithmetic number, because the mean of its divisors is an integer number (411765816).

Almost surely, 2^2117652756 is an apocalyptic number.

It is an amenable number.

2117652756 is an abundant number, since it is smaller than the sum of its proper divisors (2823537036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2117652756 is a wasteful number, since it uses less digits than its factorization.

2117652756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176471070 (or 176471068 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 2117652756 is about 46017.9612325448. The cubic root of 2117652756 is about 1284.1573719437.

The spelling of 2117652756 in words is "two billion, one hundred seventeen million, six hundred fifty-two thousand, seven hundred fifty-six".